Loom-stopping mechanism



Oct. 12 1926.

M. L. STONE LOOM STOPPING MECHANISM 2 Sheets-Sheet 1 Filed May 22, 1926 K wm (him N am 1 m6 am. q a Wm m m 1 NM MN 0 QM H A N t r w" u /NI EN7'OR mw nz MN WN ATTORNEY Oct. 12 1926.

M. L. STONE ULOOM STOPPING- MECHANISM Filed ga 22, 1926 2 Sheets-Sheet 2 AT ORNEY fault or b eakage in the-threads Weaving andthe'tthe Weaver at once remedy time (See 12, 192e,

ii seesaw-Em i ense sew 1 MELVIN L. s gonn, o mmee, nnopis retra n; Assionon 'I'Q DBAPER 'coniaonA- I TION, 0 noPn E, MA$SACHUSETT$, n ceierol thiroii o 'MAi-Nnj I Q1 Looms/Tommie 'lVIEilI -IAIlISI/lf I Application fi led May 22,

stopped onthe' occurrenceot afjfeult in thd threads during Weaving. It isnotv -the ommon practice to 'PIOVlClQ looms with stopping 1 mechanism-is w efie'ct loom" stoppage" on the occurrene of a "-feult either inthe-"Werpthreeds or in the- Weft threzi'd's duringweavin so thatthe weaver" maylrein'e'dy the thread fault and-continue to Weave perfect cloth. It happens attiinesthat the Weaver maintains his hold on the I shipper which controls the 100m, Stfiltlllg and stopping mechanlsm, and should a 'Warp or weft fault occur 'at' such times thQ lOOIDf will continue to run; With the result that imperfect cloth may be woven; .For' the pr0 duction of perfeetcloth it is essential' thtt the loom be stoppedon the occurrence-01ththe fault? .One of" the objects of theflpresent' invenf tion'is to'provideloom. stopping inechanlsrn any usual form of warp stop mechanisrhof including a shipper",-Which," on {the occur f rence of a faultinthe' thre'ja'ds during'weaying, Will effect looni stoppage', ey' en though ent; illustration "of the invention the loom is j provided with both awva rpstop nechanisrn the Weaver may have hold' of the-shipperhendle. In accordance Withthe present in? vention; the loom-stopping mechanismin-w cludes'xe shipper'which hzts a handle or structioni haying the laly QWhich is given its; frontw ard andu'earward movements:- Vthroug'h 'a 'pitman "3 'coniiected tothecirtn'lc" hand piece moyably mounted upon theshipper but is normally 'lockedtothe'shippep, to enable the weaver' to' stop the loom hand at his optiong end inez'ftns areprovided for trippingfthe lock to freeithe' fshipper from :the shipper handle control and insure loom stoppage on the occurrence of a; thread fault even though theweaver ntey' hold-the "fore-noted; mztyiber'of'enyusuel type butres- V V mechanisms are included; and connected" to the shipper to effect loom stoppage-on the occurrence of either a warp or Weft-"fault,

even though {the shipperhandflvbeiheld in loom running positionyhut the inyerit'ion mziy obvio sly be employed connection; with eitherie Warp stopmeehantsm-er a Weft stop" mechanism or both:

The inyentio'n'end new combination of i926? set-t rm. 110,885."

parts' will' best-he made cleanfroni the following" description and i the 5 accompanying;

aw ngs of one good "form'thereoffi "lnthedrawingszc Fig 5 1'-is *a side-elevation of aloom-piO- .V WithQthe present invention; showing: both e Warp stop-inechanis ii anda, Weft st 0p mechanism; some of "the parts heinghroken away and-the loom; being: illustrated iii-run hing con ditioh; i

Fig. 2 isfan enlarg'ed side elevation show- 'ing' the relation @of p arts when" a weft- "fault he's occurred and the loom is thereby stopped; notwithstanding thefweaver hdlds the shipper handle *i'n loorn running posi- 1 tfollingg'theconnection between: the shipper? and 'shifppenhzindley V.

Figy isjan edge in seictiom and s I F-igsl5 i a" sectionfon' -theizline 5+5"of Fig. 3 is en* enIarged PerSpectiVe detail-ii showing one form "of Lock andtrip forhon View, pairts' being-shown In eccordd'nce with the present invention,

any usual 1 form Weft stop mechanism 1 be employed; either or hothy hut in-lthei pres= ande-WeftstOpmecHenism. n he" loom" fra -me" l mayvhe ofi Yusual con shaft 4, and mountedzttfthe rmof the "loom' is the :Werp beam-5 ffom which 'the "Warp 7 The Warp" 'stop mechanism," as 'hereinbe-=* '7 illustrated? it comprisesthe dropr wires 6 which were normally held raised by the in- 'tact- Warp threadslendbelow the drop ft'vires,

isthe detector "7 supported on therock shaft tends to the lo-tver portion of the loom fand f is there (connectedefill to e cam follov ver l2 p li e-tallymountedfiat 13 and normallybearing-upon a cam 14 ion the lowerfor cam? 8 for oscillatory movement belowwthe ill-op Wires'u" The rock" shaft-9 8, has the arrive "towhi'ch islconnected erodi-lOswhich ex shaft under the influence of a spring 16, the construction being such that the detector 7 is given the usual oscillatory movement during loom operation. These parts may be as usual.

Secured to and extending from the rock shaft 8 is a dog actuating arm 16 to which is connected a rod 17 jointed at 18 to the tail piece 19 of a dog 20 pivotally mounted at 21 on the link 22 which is itself pivotally connected to the loom frame at 23. The construction is such that upon oscillatory movement of the detector, the dog 20 will be moved into inoperative position relative to a hunter 24 carried by the lay 2 and such movement-s may continue as long as the warp threads remain intact or without fault. Should a warp thread break or become too slack-however, the detector 7 will be arrested by the fallen drop wire and position the dog in the path of the hunter, thereby effecting loom stoppage through a train of mechanism presently to be described.

in the present instance of the invention, the lay 2 carries a center weft fork 25 pivotally mounted at 26 and connected at 27 with a downwardly extending rod 28 which controls the position of a knock-0E finger 29 pivotally mounted at 30. The parts so far described may be as usual and the details thereof form no essential part of the present invention. The weft fork mechanism is such that should the finger 29 be lowered by the absence of weft in the shed, it will engage a projection 31 extending from the slide 32 which is mounted by pin and slot connection 33 to the loom frame orabracket secured thereto. V

Pivotally mounted upon the loom frame and preferably to the bracket which supports the slide 32 is the rocker arm 34 constituting a part of the loom stopping mechanism. The rocker 34 is pivotally mounted at 35 and its upwardly extending end 36 bears upon the front edge portion of the slide 32, the construction being such that should a weft thread fault occur the finger 29 will, on frontward movement of the lay, move the slide 32 and effect rocking movement of the rocker 34.

Pivotally secured to the rocker 34 at 37 is the rod or connection 33 which also constitutes part of the loom stopping mechanism. The rod or connection 38 is provided with a slot 39 through which en ages a pin or rod 40 secured to the shipper lever 41 which is itself pivotally mounted, upon the loom frame at 42.

It has not been deemed necessary herein to show and describe the details of the stopping elements which extend to the clutch or belt mechanism which actuate the loom, since such details form no port of the presentinvention and are now well understood in the art.

The shipper 41 is provided with a handle or hand piece 43 which, as shown, Figs. 3 and 4, is pivotally connected to the shipper by the pin 44, the head 45 of which is enlarged to overlie the outer face of the shipper handle and such pin is shown as secured to the shipper 41 by a threaded bolt 46. I

The shipper handle or hand piece43 is therefore pivotally mounted upon the shipper and in order to connect the hand piece to the shipper, so that the latter may be moved by the weaver to stop the loom at his pleasure, the handle or hand piece 43 is connected to the shipper by a lock, the features of which are also associated with the warp and weft stopping mechanism as will later appear.

In the present instance of the invention, the shipper 41 is provided with a hollow boss 4? extended laterally therefrom, as indicated in Figs. 3 and 4, and mounted in the hollow boss 47 is the locking bolt 48 which passes through an opening 49 formed in the shipper 40 and is normally engaged in a recess or opening 50 formed in the hub portion of the handle or hand piece 43. The locking bolt 48 is normally under the influence of a spring 51 e which may be conveniently mounted in the hollow boss 47 with its outer end resting against the face of an adjusting bolt 52, while its inner end rests upon the face 53 of the locking bolt 43, the normal tendency of the spring being to move the bolt into locking position to lock the handle or hand piece 43 to the shipper, and when 7 the parts areso locked it will be obvious that ill) the shipper may be moved by the loom attendant to stop the loom at will.

In accordance with the present invention, however, the handle or hand piece 43 is to be unlocked from the shipper on the occurrence of a fault in the threads during weaving, so that even though the loom attendant hold the shipper handle in loom running position,'the loom will nevertheless stop by actuation of the stopping mechanism due to either a warp or weft fault.

Connectedto the swinging link .22, which carries the dog 20, is a rod 54 which passes a through the lug 55 extending from the stop ping-connector 38 and IlJSflOlltend portlon is pivotally connected at 56 to a lock trip actuating mechanism, as will presently be.

explained. Tnterposed between the projection 55 and a shoulder 57 on the rod 54 is a spring-58 normally tending to move the rod 50 frontwardly.

The rocker 34 has pivotally connected to it at 59, Fig. 1, an arm 60 which, like the rod 54, is connected at 56 to the lock trip actuating mechanism, the construction being such that upon the occurrence of either a warp or a weft fault in the construction shown, the rod '54 orarm 60 will be moved rearwardly and this rearward movement is ill? utilizedfin thepre'sent' in; ention; to. actuate the lock tripping mechanism,

1 From-the construction thus-far; described it will be apparent that upon rearward movement of therod 5 L011 arm; 60, the togglewill be straightened. b 1

The. upper member 62 of the toggle ';has an offset portion 65, best shown in Figs; 3 and A," on "which;v is pivotally mounted at 66' atrip, 67. The trip, 67 has its lower arm 68'connected to a. spring'69 which normally maintains the ,trip inthe position indicated in Fig.- 4,. with the lower arm-t8, in con tact with a stop 70.

Extending laterally from the locking pin 48' is an arm Tlwhich projects through'an opening 172 formed in the boss 47, as indicated in Fig. 3, and oneface of the arm 71 is rounded asat 78flso that upon upward movement of the trip 67 when the toggle is straightened, as hereinbeforedescribed, the trip fi'lwill engage the rounded surface 73 and withdraw the locking bolt 48 from its locking position and thereby free the ship- .per handled?) for movement relative to the shipper. I Inthe present instance of the invention, the trip 67 is formed as a bypass, so that. when the'trip rises as described and withdraws the looking bolt from engagement with the shipper handle 43, the trip willrise beyond the projection 'Z 1 and on'downward movement of the trip it may by-pass or yieldwhen it comes into contact with the opposed face of the projection 71. ,This construction has proved to be a good practical form of locking trip, but the invention is not restricted thereto, as any form of trip which may serve to disconnect the shipper handle fromthe shipper on the occurrence of a warp or weft fault is within the purport of the ,present invention.

From the construction described it will be I obvious that on the occurrence of either a' rearwardly to effect loom stoppage, and as either of said mechanisms are thusmoved to stop the loom, the toggles 61 and 62 will be straightened by the connections 54 and 60 with the stopping mechanism to thereby actuate the trip and withdraw the locking bolt from locking engagement with the shipper handle, so that should the weaver have hold of the shipper handle when either e invention,

into action, by, fault'in thethreacglaitheshipper ,hand'le wil-l beunlockedv from. the

shipper to th ereby prevent the. shipper be-Y ing held in; loom-running yposition the weaver, and thus loom; stoppage Wlll occur even, though. the-weaver on the occurrence of ,al warp or awet't fault mayvhold the.

shipper handle 'inloom running position. I lVhati s claimed lS Z r 1 1 .In a.floom, the combination ofloom 'stopping mechanisni to effect loom stoppage on the} occurrence of a fault in, thelthreads during ,weaving, including a shipper, a hand piece'normallycloclied toflthe' shipper, and y means: actuated by the stopping mechanism to unlock.the handpiecefrom (the shipper to insure loom stoppage even though the weaver cholds the hand piece in loom running .position. V

g l 1 the cOlfflbll'lal lOn of loom stopping mechanism to effectloom -,stoppage on the occurrence of a fault. in the threads during weaving including ;a shipper, a hand piece p votally connected to the shipper, a locknormally locking the hand piece to the shipper, landa trip; actuated, by the stopping mechanism'to trip the lock andfree the shipper-from the handpiece gto eflect" loomstoppage evenhthojugh the hand, piece 1sheldinloom running position, i

3.In a loom, the combination of stopping means to eii'ect loom stoppage on loom the occurrence of a fault inthe warp or weft threads during weaving including a shipper, a hand piece connected to the shippe'rfor relative movementtherewith, a look normally locking the hand piece to the ship'- per for conjoint movement therewith, and a trip for unlocking the hand piece from the shipper on the occurrence of a warp orweft fault to insure loom stoppageeven though 7 the handpiece is held in loom runningposition.

nectedito the warp and weft stopping mechanisin to trip the lock and free the shipper fromthehand piecewhen'e-ithe'r'the warp or weft stopping mechanism is actuated by the occurrence of a warp'or weft fault to stop theloom.

mechanism to efi'ect'loom stoppage on the T 4L Ina loom, the combination of warp I i i I ,5. In a loom, thecombination of stopping occurrence of a fault in the threads during I weavingincluding a shipper, a hand piece connected to the shipper for movement relahand piece to the shipper that the shipper maybe moved to stopping position by the b hand piece, and a trip actuated by the stopthe warp or weft stop mechanisms are called ping mechanism to unlock' the hand piece 1 tive thereto, a lock normally locking the from the shipper to insure loom stoppage even though the hand piece is held in loom running position.

6. In a loom, the combination of stopping mechanism to effect loom stoppage on the occurrence of a fault in the threads during weaving including a shipper, a hand piece connected to the shipper for movement relative thereto, a lock normally locking the hand piece to the shipper that the shipper may be moved to stopping position by the hand piece, and a trip connected to the shipper and actuated by the stopping mechanism to unlock the hand piece from the shipper to insure loom stoppage even though the hand piece is held in loom running position. 7 Y I 7. In a loom, the combination of loom stopping mechanism including a shipper, means connected thereto to efiect loom stoppage on the occurrence of a fault in the warp or weft threads during weaving, a hand piece pivotally mounted on thesshipper, a lock carried by the shipper and normally locking the hand piece from pivotal movement relative tothe shipper that the shipper may be moved by the hand piece to stop the loom, and a trip connected to the warp and weft stopping means to free the hand piece from the shipper and insure loom stoppage should the hand piece be held in loom running position.

8. In a loom, the comblnation of Warp stop mechanism and weft stop mechanism,

a shipper connected thereto to efiect loom stoppage on the occurrence of either a Warp 9. In a loom, the combination of a shipper to start and stop the loom, a handle movably mounted on the shipper, a lock normally locking the handle from movement on the shipper, a trip for the lock, warp and weft stopping mechanisms, and connections be tween the lock trip and said mechanisms to free the shipper from control of the hanclle to insure loom stoppage even though the handle be held in loom running position on the occurrence of a fault in the threads.

In testimony whereof, I have signed my name to this specification.

MELVIN sronn. 

